Update from the game?

I was wondering if you could put a button (or something similar) and make it when you click on it, you download a certain file from the internet. If everytime I update the game and save it the same thing I make the button downloads, would it download the updated version? Also, would you have to delete your current game, or would the updates be there the next time you play the game?

For that I think you'd want to use the Download and ZIP plugins. As long as the website link is the same, you should be able to download a zip file from your website with the Download plugin and then extract it to your current game folder using the ZIP plugin.

I've not tried this before, but I think I remember somebody using that method in the past.

It's possible and well I've done a updater and I think you can find it from here on forums.